Sony MEX-BT2900 / MEX-BT2950 Service Manual ▷ View online
MEX-BT2900/BT2950
MEX-BT2900/BT2950
21
21
SECTION 5
DIAGRAMS
For Schematic Diagrams.
Note:
• All capacitors are in μF unless otherwise noted. (p: pF) 50
• All capacitors are in μF unless otherwise noted. (p: pF) 50
WV or less are not indicated except for electrolytics and
tantalums.
tantalums.
• All resistors are in Ω and 1/4 W or less unless otherwise
specifi ed.
• f : Internal component.
• C : Panel designation.
• C : Panel designation.
THIS NOTE IS COMMON FOR PRINTED WIRING BOARDS AND SCHEMATIC DIAGRAMS.
(In addition to this, the necessary note is printed in each block.)
(In addition to this, the necessary note is printed in each block.)
• A : B+ Line.
• Power voltages is dc 14.4V and fed with regulated dc
• Power voltages is dc 14.4V and fed with regulated dc
power supply from ACC and BATT cords.
• Voltages and waveforms are dc with respect to ground
under no-signal conditions.
no mark : TUNER (FM)
( ) : TUNER (AM)
< > : CD PLAY
( ) : TUNER (AM)
< > : CD PLAY
*
: Impossible to measure
• Voltages are taken with VOM (Input impedance 10 M
Ω).
Voltage variations may be noted due to normal production
tolerances.
• Waveforms are taken with a oscilloscope.
Voltage variations may be noted due to normal production
Voltage variations may be noted due to normal production
tolerances.
• Circled numbers refer to waveforms.
• Signal path.
F
F
: AUDIO
f
: TUNER
J
: CD PLAY
p : Bluetooth
N
N
: MIC
L : AUX IN
g : BUS AUDIO IN
g : BUS AUDIO IN
• Abbreviation
CND : Canadian model
CND : Canadian model
For Printed Wiring Boards.
Note:
• X : Parts extracted from the component side.
• Y : Parts extracted from the conductor side.
• W : Indicates side identifi ed with part number.
• f : Internal component.
•
• X : Parts extracted from the component side.
• Y : Parts extracted from the conductor side.
• W : Indicates side identifi ed with part number.
• f : Internal component.
•
: Pattern from the side which enables seeing.
(The other layers’ patterns are not indicated.)
Caution:
Pattern face side:
(SIDE B)
Parts face side:
(SIDE A)
Pattern face side:
(SIDE B)
Parts face side:
(SIDE A)
Parts on the pattern face side seen
from the pattern face are indicated.
Parts on the parts face side seen from
the parts face are indicated.
from the pattern face are indicated.
Parts on the parts face side seen from
the parts face are indicated.
Note:
The components identi-
fi
The components identi-
fi
ed by mark 0 or dotted
line with mark 0 are criti-
cal for safety.
Replace only with part
number specifi ed.
cal for safety.
Replace only with part
number specifi ed.
Note:
Les composants identifi és
par une marque 0 sont
critiques pour la sécurité.
Ne les remplacer que par
une pièce portant le nu-
méro spécifi é.
Les composants identifi és
par une marque 0 sont
critiques pour la sécurité.
Ne les remplacer que par
une pièce portant le nu-
méro spécifi é.
• Abbreviation
CND : Canadian model
CND : Canadian model
• Circuit Boards Location
• Waveforms
– MAIN Board –
• Indication of transistor.
C
B
These are omitted.
E
Q
MAIN board
SWITCH board
SERVO board
KEY board
– Front panel –
– Main unit –
BT board
ANTENNA board
2
IC401 qd (OSCOUT)
2 V/DIV, 50 ns/DIV
126 ns
3.5 Vp-p
3
IC001 qh (XTAL1)
0.05 V/DIV, 50 ns/DIV
250 ns
0.06 Vp-p
1
IC401 qa (XOUT)
1 V/DIV, 20
Ps/DIV
30.5
Ps
1.2 Vp-p
MEX-BT2900/BT2950
MEX-BT2900/BT2950
22
22
5-1. PRINTED WIRING BOARDS - MAIN Section -
•
: Uses unleaded solder.
• See page 21 for Circuit Boards Location.
1
A
B
C
D
E
F
G
H
I
2
3
4
5
6
7
8
9
10
11
12
13
KEY BOARD CN901
A
BT BOARD
MIC201
ANTENNA BOARD
(SIDE A)
ANTENNA BOARD
(SIDE B)
11
(11)
1-876-642-
11
(11)
(PATTERN ANTENNA)
4
6
1
3
7
8
11
10
9
1
37
2
36
21
20
40
1
1
16
17
32
1
10
0
80
81
50
51
30
31
1
7
8
C
E
B
B
14
FB604
C20
JW371
C21
R401
FB606
C22
C23
C23
FB608
C24
FB609
C25
C26
R212
C27
R213
C28
R216
R217
JC335
R415
R221
R416
R222
R801
R802
R3
R805
(BT2900: US, CND)
(BT2900: US, CND)
(EXCEPT BT2900: US, CND)
R804
R806
CN403
R808
C41
R809
R807
JC346
R810
R813
R815
R816
R817
R818
C201
R819
C203
CN801
C206
CN802
C207
C208
C209
R631
C401
R826
C402
C404
C210
JL001
C405
C211
JL002
R636
C212
C406
JL003
C213
C407
JL004
C214
JL005
C409
C215
JL006
JL007
C217
JL008
C218
JL009
JL010
JL011
JL012
JL013
JL014
JL015
C801
JL016
C802
JL017
C803
JL018
C804
JL019
C805
TH801
C806
C807
C808
C809
JL020
JL021
S401
JL022
A14
B1
A1
JL023
JL024
C810
JL025
C811
JL026
C812
JL027
C813
JL028
JL029
C815
R661
R662
R663
R578
R578
JL030
R664
JL031
JL032
JL033
JL034
JL035
JL036
JL037
JL038
JL039
C1
R671
R851
R557
R555
C5
R672
C6
R673
JL040
R674
C8
JL041
R675
C9
JL042
R676
JL043
JL044
JL045
JW201
JL046
JW202
JL047
JL048
JL049
Q102
JW207
Q103
JW208
Q104
R16
R15
JW209
JL050
D202
D203
D204
D205
JW212
JW213
Q303
JW214
Q304
JW215
JW216
JW217
L101
R691
JC280
JW219
JW222
JW223
JC263
JW225
JW227
JW230
JW231
D801
JW232
D803
D804
JW234
JW235
D806
JW237
D807
IC402
JW240
JW241
D811
D812
(BT2900: US, CND)
D815
(EXCEPT BT2900: US, CND)
D814
D813
(BT2900: AEP, UK)
(BT2900: US, CND)
JW243
JW244
JW245
JW290
JW246
JW248
JW250
JW251
JW252
JW253
JW254
JW258
JW261
JW262
R101
D
111
JW268
L151
JW269
R106
R107
R301
R302
JW273
JW275
JW276
R112
JW277
R113
R308
JW279
R309
R116
R117
R500
R501
R502
R503
R504
R505
JW281
R507
JW283
R313
JW284
R508
R509
L1
R121
L2
L3
L4
JW286
R122
JW288
R701
L6
4
6
3
2
1
L7
R703
R510
L8
R51
1
R512
R513
R708
R514
JW291
R516
R517
R517
R541
R540
R585
JW292
JW293
R519
JW296
JW362
JW298
JW299
R521
R522
C101
C103
CN701
C106
JC257
C107
C108
C109
R531
R532
R533
C303
R534
C304
C110
C305
C112
C306
R537
R538
C113
C307
C308
C114
R151
C115
CL001
R152
CL002
R153
C117
CL003
R154
C1
18
C930
CL004
R155
CAM003
R104
R103
CL005
C502
C503
C504
C312
R543
C507
C313
R544
C508
R545
R11
C315
R546
C316
R12
R13
C317
R14
R549
R551
C701
C703
C704
C705
X501
X502
C706
C512
C707
C513
R550
R526
C708
C514
C515
C709
C322
R553
R554
R564
C710
C71
1
R559
C712
C520
C521
C522
C523
R560
R561
R756
R562
R565
R566
R567
R568
R1
R2
R570
R571
C151
C152
C153
R577
C154
C155
VR1
CL042
1
9
10
18
JW102
CL043
C157
CL044
CL045
CL045
CL048
CL047
CL046
CL049
R581
R582
R583
JW300
R584
C931
C1005
JW301
JW282
R586
JW302
D102
R587
JW303
D103
CL050
R588
JW304
D104
CL051
R589
D105
CL052
Q202
CL053
JW307
Q203
JW308
(BT2900: US, CND)
CL054
Q204
CL055
JW309
CL056
CL057
R111
R590
R591
R592
C556
D302
R593
D303
R594
JW310
D304
R595
D305
R596
JW312
D306
JW313
R597
R598
JW315
JW317
JW318
C755
JW126
D502
JW320
JW321
JW322
JW323
JW325
JW326
JW327
JW324
JW363
D703
L403
JW328
D704
JW329
Q802
Q807
Q808
JW137
JW138
Q805
IC302
JW331
JW332
JW333
JW334
JW336
JW337
JW147
JW148
D719
L801
FB14
JW341
PL01
FB15
JW342
PL02
JW343
JW344
X1
JC103
JC104
JC106
JC107
JC109
JW350
JW351
JW352
JW353
D153
JW354
JW355
JW356
JW357
JW358
JW359
JC1
16
JC118
JW360
JW361
C12
C13
JW364
R201
JC121
JW366
C16
JW367
C17
C18
C19
R206
R207
1-882-653-
11
X501
S401
RESET
FU601
(ANTENNA)
J1
9
1
16
8
1
2
4
3
1
3
5
4
(CHASSIS)
(CHASSIS)
(BT2900: US, CND)
(BT2950)
(BT2950)
2
1
14
15
BCE
BCE
ECB
ECB
BCE
ECB
BCE
ECB
BCE
Q806
BCE
ECB
ECB
1
14
15
28
J301
L
R
FRONT
AUDIO OUT
(BT2900: US, CND/BT2950)
L
R
REAR / SUB
AUDIO OUT
AUDIO OUT
L
R
BUS
AUDIO IN
(BT2900: US, CND)
IC301
IC001
IC1002
IC401
IC403
IC801
C2
C3
C466
C463
C460
C459
CN801
J801
1
2
3
7
8
4
5
6
(FRONT VIEW)
BUS
CONTROL IN
REMOTE
IN
(BT2900: US, CND)
1
9
WHT/BLK
WHT
GRN/BLK
GRN
VIO/BLK
VIO
GRY/BLK
GRY
WHT
GRN/BLK
GRN
VIO/BLK
VIO
GRY/BLK
GRY
BLU
RED
YEL
BLK
YEL
BLK
FRONT LCH (–)
FRONT LCH (+)
REAR LCH (–)
REAR LCH (+)
REAR RCH (–)
REAR RCH (+)
FRONT RCH (–)
FRONT RCH (+)
FRONT LCH (+)
REAR LCH (–)
REAR LCH (+)
REAR RCH (–)
REAR RCH (+)
FRONT RCH (–)
FRONT RCH (+)
ACC
BATT
GND
BATT
GND
2
10
3
11
4
12
5
13
6
14
7
15
8
16
1
1
9
WHT/BLK
GRN/BLK
VIO/BLK
GRY/BLK
GRN/BLK
VIO/BLK
GRY/BLK
WHT
GRN
VIO
GRY
BLU
RED
BLK
2
2
10
3
3
11
4
4
12
5
5
13
6
6
14
7
7
15
8
8
1
2
3
4
5
6
7
8
16
RL+ RL–
GRN/BLK
WHT/BLK
GRY/BLK
VIO/BLK
WHT/BLK
GRY/BLK
VIO/BLK
GRN
WHT
GRY
VIO
FL+ FL–
FR+ FR–
RR+ RR–
ACC GND
BLK
YEL
RED
BLU
ANT
REM NC
NC BATT
NC NC
TO
CN802
TO
CN802
(BT2900: AEP, UK)
(BT2900: US, CND/BT2950)
YEL
ATT
AMP REM
MAX 0.3 A
MAX 0.3 A
LIGHT BLU
BLU / WHT
BLU / WHT
ATT
AMP REM MAX 0.3 A
LIGHT BLU
BLU / WHT
BLU / WHT
SERVO
BOARD
BOARD
SWITCH
BOARD
CD MECHANISM
DECK
MG-101X-188//Q
ANT REM MAX 0.1A
C104
R413
R414
R548
R525
(BT2950)
(BT2900)
(BT2900: US, CND)
(EXCEPT BT2900: US, CND)
(EXCEPT BT2900: US, CND)
(BT2900: US, CND)
C557
R856
R855
C100
C102
C1003
C111
4
5
3
1
C123
C124
JW335
R824
R821
R820
R822
D808
CN1
1-876-642-
JW316
JW305
JW263
(Page 26)
Note 2: When SERVO board is detective, exchange
the complete mounted board.
Note 1: When BT board is detective, exchange
the complete mounted board.
Note 3: When SWITCH board is detective, exchange
the MECHANICAL BLOCK ASSY (X).
Note 4: When the BT board is replaced, it is necessary to confi rm operation. Refer to “BLUETOOTH FUNCTION
CHECKING METHOD USING A CELLULAR PHONE” of the servicing notes (See page 6).
MEX-BT2900/BT2950
MEX-BT2900/BT2950
23
23
5-2. SCHEMATIC DIAGRAM - MAIN Section (1/3) -
• See page 28 for IC Block Diagrams.
1
MAIN BOARD
(2/3)
(3/3)
BOARD
MAIN
2
IC B/D
IC B/D
IC B/D
3
7.2
3
7.2
14.4
7.2
7.2
4.6
4.3
4.3
4.3
4.3
4.5
7.2
7.2
14.4
7.2
3.2
7.2
3.2
13.8
13.8
8.3
0<3.3>
6
10.3
14.4
14.2
5
0
5.3
0.6
0
3
3.3
13.9
0
0
13.7
3.3
1.3
55
5
0
5.3
0.1
2.5
3.2
5
0
3.2
2.7
1.6
1.5
0
0
0.6
5.3
00
2.7
0
1
IC403
IC402
IC801
16V
47
C313
0.22
C405
1A4-A2
D105
1A4-A2
D815
1A4-A2
D814
2SC4154TP-1EF
Q805
ACC DETECT
1
C209
1A4-A2
D305
16V
3300
C807
1000p
C806
2.2
C315
IC301
I2C BUS CONTROLLED POWER AMP/
MULTIPLE VOLTAGE REGULATOR
TDF8556AJ/N3/M5 (BT2900: AEP, UK)
IC301
TDF8556AJ/N3 (BT2900: US, CND/BT2950)
TA
B
1
I2C_SIO
2
OUT
-FL-
3
I2C_SCK
4
OUT
-FL+
5
VP2
6
OUT
-RL-
7
P-GND1
8
OUT
-RL+
9
SVR
10
IN-RL
11
IN-FL
12
S-GND
13
IN-FR
14
IN-RR
15
BEEP
16
OUT
-RR+
17
P-GND3
18
OUT
-RR-
19
VP1
20
OUT
-FR+
21
STB
22
OUT
-FR-
23
P-GND4
24
DIAG
25
RST
26
ANT
-REM
27
CRES
28
AMP-REM
29
AUDIO+B(8.5V)
30
SER
VO-3.3V
31
GND
32
MECHA-6V
33
PANEL+B
34
VP
35
CBU
36
BU+B
37
10V
C307
220
1
C1
14
0.22
C305
1
C210
1
C215
25V
22
C303
1A4-A2
D202
1N5404-C31
1-3
D812
16V
C312
10
47k
R817
47k
R819
1
C109
0.1
C808
1000p
C805
4.7k
R818
1000p
C755
1
C1
10
0.22
C81
1
D304
D302
0.22
C406
1
C1
15
1
C214
1A4-A2
D104
1A4-A2
D203
1A4-A2
D204
0.22
C308
1A4-A2
D303
CN802
16P
1
FL+
2
RL+
3
RR+
4
FR+
5
AMP-REM
6
ANT-REM
7
ACC
8
GND
9
FL-
10
RL-
11
RR-
12
FR-
16
+B
13
TEL-ATT
14
ILL
15
TEST
17
+B
18
+B
19
+B
150
R308
0.22
C810
1A4-A2
D102
1A4-A2
D205
1
C803
RKZ18B2KGP1
D81
1
C306
0.22
C304
1A4-A2
D103
S401
(EXCEPT BT2900: US, CND)
(BT2900: US, CND)
16V
47
C322
DA2J10100L
D306
10V
1000
C409
0.1
C407
RT1P141M-TP-1
Q304
MUTE DRIVE
C815
22
R313
100k
R401
4
3
1
2
PST8228UL
IC403
RESET
VOUT
Vdd
NC
VSS
5
4
3
2
1
TK11133CSCL-G
IC402
+3.3V REG
CONT
GND
NP
VOUT
VIN
0
FB604
0.1
C402
DRC5114E0L
Q303
MUTE DRIVE
0.1
C401
R804
1k
14
13
12
11
10
9
8
7
6
5
4
3
2
1
BA8271F-E2
IC801
BUS
INTERFACE
BUS_ON
RST
BA
TT
CLK
VREF
DA
TA_I/O
GND
DA
TA_OUT
DA
TA_IN
BU_CHECK
CLK_IN
BUS_IN
RST
VCC
R806
100
R809
330k
R813
100
TH801
R808
0
R805
1k
C809
0.1
G G G
7
8
4
5
6
9
10
11
1
2
3
RKZ18B2KGP1
D803
RKZ18B2KGP1
D804
R807
330k
25V
C802
470
C801
0.47
J801
REMOTE IN
DRC5114E0L
Q802
BACK-UP CHECK
1k
R816
10k
R820
RKZ18B2KGP1
D807
47k
C21
1
4.7k
R631
10V
100
C503
220
R415
220
R416
0
R309
LRB751V
-40T1G
D801
R301
100
100
R302
L801
1
2
R810
0
C404
0.22
C104 1000p
R826
R802
R801
1
2
3
4
5
6
9
10
11
12
13
14
15
16
BUS1
BUS2
BUS3
8
RCIN1
BEEP
STB
DIAG
I2C_SCK
I2C_SIO
UNI_SCK
UNI_SO
UNI_SI
BUS_ON
RESET
ACC
TEL
SYS_RESET
RCIN0
BU_IN
MAIN BOARD (1/3)
RESET
10A
FU601
BUS
IN
CONTROL
CN801
1000p
5
11
H
6
C
E
1
B
G
12
13
14
I
D
F
A
9
2
8
4
10
7
3
1A4-A2
D813
(BT2900: AEP, UK)
(EXCEPT BT2900: US, CND)
R815
1k (EXCEPT BT2900: US, CND)
15k (BT2900: US, CND)
R584
JW335
JW364
JW308
220k
R540
100k
R541
100k
R585
220k
D806
RKZ7.5B2KGP1 (EXCEPT BT2900: US, CND)
RKZ6.2B2KGP1 (BT2900: US, CND)
10k
R821
1k
R824
47k
R822
2SC4154TP-1EF
Q806
TEL ATTENATION
DETECT
DRC5144E0L
Q807
2SC3052EF-T1-LEF
Q808
Q807, 808
BATTERY CHECK
RKZ18B2KGP1
D808
RL-
RL-
RL+
RL+
FL-
FL-
FL+
FL+
FR-
FR-
FR+
FR+
RR-
RR-
RR+
RR+
ATT
AMP REM
BATT
GND
MAX 0.3A
ACC
AMT REM
BATT
GND
FRONT LCH-
FRONT LCH+
REAR LCH+
REAR LCH-
REAR RCH+
REAR RCH-
FRONT RCH+
FRONT RCH-
ACC
GND
BATT
ATT
AMP REM
MAX0.3A
ACC
AMT REM
ANT REM
MAX0.1A
(BT2900: AEP, UK)
(BT2900: US, CND/BT2950)
TO
CN802
TO
CN802
(Page 25)
(Page 24)
MEX-BT2900/BT2950
MEX-BT2900/BT2950
24
24
5-3. SCHEMATIC DIAGRAM - MAIN Section (2/3) -
• See page 21 for Waveforms. • See page 28 for IC Block Diagrams. • See page 30 for IC Pin Function Description.
1
(1/3)
MAIN BOARD
BOARD
3
(3/3)
MAIN
1
2
IC B/D
0
0
3
3.2
0
0
3.3
3.3
0
0
3.2
3.2
0
3.2
3.2
3.3
3.3
0
0
0
0
0 <3.2>
0 <3.2>
0
0
0
0
0 <3.2>
0
0
0
0
0
0
3.2
3.3
3.3
3.3
0
0
3
0
0
3
3.3
3.3
3.2
0
0
0
0 <3.3>
0 <3.3>
0 <3.1>
0
3.2
0.1
3
1.6
1.5
3.2
0
0.2
0.8
2.9
1.7
1.4
3.3
3
3
2.7
3.3
0
0
0
0
0
3
3
3.3
8.3
1.3
8.3
IC401
100k
R561
(BT2900: US, CND)
100k
R674
0
R509
1k
R510
1k
R512
470
R570
LRB751V
-40T1G
D502
100k
R519
100k
R554
100k
R553
100k
R513
100k
R532
100k
R533
10M
R501
32.768kHz
X502
150k
R508
18p
C508
22p
C507
100
R672
0
R756
100k
R514
0.01
C513
1000p
C502
100
R671
0.5%
10k
R673
100
R503
0.5%
10k
R505
100
R502
0.5%
10k
R504
1000p
C512
1000p
C514
0.01
C523
0.01
C522
100k
R691
0.1
C504
10k
R500
10k
R534
100k
R531
100k
R636
R564
100k
1k
R663
1k
R661
R855
R856
100
100
R851 100k
10k
R664
10k
R662
0
R517
100k
R567
0
R516
100k
R565
2.2k
R522
2.2k
R521
47p
C521
47p
C520
C101
560p
0.01
C710
560p
C201
10V
100
C701
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
28P
CN701
MEC_DSW
MEC_LIMIT
MEC_INSW
MEC_SELFSW
CDON_1500MV
AU_8V
VDD_3.3V
D_GND
BU_3.3V
DR_6V
DR_GND
MEC_EJECT
MEC_LOAD
DRV_ON
DEC_INT
DEC_XMUTE
CD_ZDET
NC
NC
DEC_SO
DEC_SI
DEC_SCK
DEC_XCCE
DEC_SSTBY
DEC_RST
AU_RCH
AU_GND
AU_LCH
1k
R101
16V
10
C703
0.01
C711
R708
0
1k
R201
0.01
C712
0.01
C704
100k
R577
7.92MHz
X501
FB608
FB609
FB606
0
R701
0
R703
100k
R571
10k
R559
10k
R560
33k
R562
33k
R566
CL001
CL002
CL003
CL004
1k
R511
1k
R543
R676
0
R675
0
CL005
1M
R581
1k
R582
1k
R583
1k
R586
1k
R587
100
R588
100
R590
100
R591
100
R592
100
R593
100
R594
100
R595
100
R596
100
R597
100
R598
100
R544
100
R545
100
R546
100k
R568
100k
R550
100k
R526
R537
100k
R548
100k
R525
100k
2200p
C515
JL006
JL008
JL009
JL010
JL011
JL012
JL013
JL014
JL015
JL016
JL017
JL018
JL019
JL020
JL021
JL022
JL023
JL024
JL025
JL026
JL027
JL028
JL029
JL030
JL031
JL032
JL033
JL034
JL035
JL036
IC401
R5F3650MBDZ99FA
SYSTEM CONTROLLER
1
LCD_SO
2
LCD_CLK
3
NOSE_SW
4
SIRCS
5
UNISO
6
UNISI
7
UNISCK
8
BYTE
9
CNVSS
10
XIN
11
XOUT
12
RESET
13
OSCOUT
14
VSS
15
OSCIN
16
VCC1
17
NMI
18
RC_IN1
19
BUIN
20
SYSRST
21
BUS_ON
22
DEC_SI
23
DEC_SCK
24
DEC_SO
25
NCO
26
NCO
27
NCO
28
BEEP
29
I2C_SCK
30
I2C_SIO
31
FW_TXD
32
FW_RXD
33
FW_CLK
34
FW_BUSY
35
BT_API_TX
36
BT_API_RX
37
DRV_ON
38
MEC_LOAD
39
MEC_EJECT
40
CDON_1500MV
41
EPM
42
MEC_INSW
43
MEC_LIMIT
44
MEC_DSW
45
DEC_INT
46
CE
47
NCO
48
NCO
49
DEC_XMUTE
50
NCO
51
CD_ZDET
52
CD_XCCE
53
DEC_SSTBY
54
DEC_RST
55
BT_A
TT_XEN
56
TELA
TT
57
ACC_IN
58
AT
T
59
DIAG
60
AMPSTB
61
CYRIL_SEL
62
VCC2
63
NCO
64
VSS
65
ILLUMI SEL
66
COLSW SEL
67
BT_MUTE
68
B-OUT
SEL
69
NCO
70
AREASEL2
71
AREASEL1
72
AREASEL0
73
DIM SEL
74
NCO
75
MEC_SELFSW
76
EQ TYPE
SEL
77
BT_TX
78
BT_RX
79
DEBUG_1
80
DEBUG_2
81 RE-IN1
82 RE-IN0
83 SAIN
84 BT_RTS
85 BT_CTS
86 BT_RESET
87 BT_POWER
88 NCO
89 SADATA
90 SACLK
91 KEYACK0
92 KEYACK1
93 VSM
94 KEYIN1
95 KEYIN0
96 AVSS
97 RC_IN0
98 AVRH
99 AVDD
100 LCD_CE
0.22
C557
R557
100
R555
100
R589
1k
R507
100k
R538
100k
R551
100k
C556
0.01
R578
100k
R549
100k
1
2
3
4
5
6
9
18
19
21
22
BUS1
BUS2
BUS3
BUS4
BUS6
BUS5
BUS7
8
STB
RCIN0
NOSE-SW
KEY0
DEC_SCK
DEC_SI
DRV_ON
MEC_LOAD
MEC_SELFSW
BUS_ON
SYS_RESET
BU_IN
L-CLK
BEEP
MEC_DSW
MEC_LIMIT
MEC_INSW
MEC_EJECT
DEC_INT
DEC_XMUTE
CD_ZDET
DEC_SO
DEC_RST
CD_XCCE
DEC_STBY
MEC_INSW
CD_ZDET
DEC_SO
DEC_SCK
DEC_SI
MEC_EJECT
MEC_LOAD
CDON_1500MV
DEC_INT
DEC_XMUTE
CD_XCCE
DEC_STBY
DEC_RST
SIR
RESET
I2C_SIO
I2C_SCK
DRV_ON
UNI_SO
SADATA
SACLK
UNI_SCK
RE-0
RCIN1
UNI_SI
L-DA
KEY1
RE-1
CDON_1500MV
CD_RCH
CD_LCH
DIAG
AT
T
ACC
MEC_LIMIT
MEC_DSW
L-CE
I2C_SIO
I2C_SCK
AT
T
MEC_SELFSW
BT_TX
BT_RX
MAIN BOARD (2/3)
11
B
3
A
12
G
2
F
13
14
15
E
4
5
9
8
7
10
6
H
I
J
C
1
D
BT_RESET
BT_POWER
BT_CTS
BT_RTS
BT_MUTE
(BT2900: US, CND)
(EXCEPT
BT2900: US, CND)
(EXCEPT BT2900: US, CND)
(BT2900: US, CND)
(BT2900)
(BT2950)
SERVO
BOARD
BOARD
SWITCH
MG-101X-188//Q
DECK
CD MECHANISM
CL057
CL049
CL050
CL042
LBAT54ALT1G
D111
CL051
CL043
C124
0.1
CL052
CL044
CL053
CL045
5
4
3
2
1
TK11133CSCL-G
IC1002
CONT
GND
NOISE
VOUT
VIN
CL054
CL046
C1005
0.01
CL055
CL047
CL056
CL048
16V
C100
10
C111
1
C1003
1
C123
4.7
C102
0.1
R111
0
R104
2.2k
R103
4.7k
RCH_P
LCH_N
RCH_N
BT_POWER
BT_RTS
BT_CTS
BT_TX
BT_RX
LCH_P
BT_MUTE
BT_RESET
DGND
15
LCH_P
MIC+_IN
17
13
18
BT800
16
LCH_N
MIC_OUT
MIC-_IN
AU_GND
RCH_P
12
10
14
11
RCH_N
MUTE
6
UART_CTS
MODULE_PON
8
4
9
7
UART_RTS
3.3
DGND
RESET
UART_TX
3
1
5
2
UART_RX
IC1002
+3.3V REG
BT
BOARD
ANTENNA
MIC201
BOARD
(PATTERN ANTENNA)
CN1
RESET
TEL
JL001
JL002
JL003
JL005
JL004
JL007
(Page
25)
(Page 23)
Note 2: When SERVO board is detective, exchange
the complete mounted board.
Note 1: When BT board is detective, exchange
the complete mounted board.
Note 3: When SWITCH board is detective, exchange
the MECHANICAL BLOCK ASSY (X).
Note 4: When the BT board is replaced, it is necessary to confi rm operation. Refer to “BLUETOOTH FUNCTION
CHECKING METHOD USING A CELLULAR PHONE” of the servicing notes (See page 6).
Click on the first or last page to see other MEX-BT2900 / MEX-BT2950 service manuals if exist.